Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_time.py @ 58925:eecf1bef052d 2.6

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Merged revisions 78207 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78207 | ezio.melotti | 2010-02-17 01:26:09 +0200 (Wed, 17 Feb 2010) | 1 line #7930: fix stripid ........
author Ezio Melotti <ezio.melotti@gmail.com>
date Tue, 16 Feb 2010 23:29:44 +0000
parents 7f6ddf555c12
children e28868cf9825 6768b2350c57
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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aa0d2d51fbde Get rid of relative imports in all unittests. Now anything that
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1 from test import test_support
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2 import time
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3 import unittest
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4
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5
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6 class TimeTestCase(unittest.TestCase):
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7
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8 def setUp(self):
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9 self.t = time.time()
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10
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11 def test_data_attributes(self):
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12 time.altzone
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13 time.daylight
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14 time.timezone
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15 time.tzname
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16
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17 def test_clock(self):
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18 time.clock()
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19
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20 def test_conversions(self):
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21 self.assert_(time.ctime(self.t)
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22 == time.asctime(time.localtime(self.t)))
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23 self.assert_(long(time.mktime(time.localtime(self.t)))
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24 == long(self.t))
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25
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26 def test_sleep(self):
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27 time.sleep(1.2)
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28
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29 def test_strftime(self):
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30 tt = time.gmtime(self.t)
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31 for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
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32 'j', 'm', 'M', 'p', 'S',
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33 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
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34 format = ' %' + directive
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35 try:
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36 time.strftime(format, tt)
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37 except ValueError:
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38 self.fail('conversion specifier: %r failed.' % format)
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39
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40 def test_strftime_bounds_checking(self):
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41 # Make sure that strftime() checks the bounds of the various parts
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42 #of the time tuple (0 is valid for *all* values).
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43
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44 # Check year [1900, max(int)]
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45 self.assertRaises(ValueError, time.strftime, '',
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46 (1899, 1, 1, 0, 0, 0, 0, 1, -1))
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47 if time.accept2dyear:
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48 self.assertRaises(ValueError, time.strftime, '',
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49 (-1, 1, 1, 0, 0, 0, 0, 1, -1))
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50 self.assertRaises(ValueError, time.strftime, '',
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51 (100, 1, 1, 0, 0, 0, 0, 1, -1))
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52 # Check month [1, 12] + zero support
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53 self.assertRaises(ValueError, time.strftime, '',
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54 (1900, -1, 1, 0, 0, 0, 0, 1, -1))
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55 self.assertRaises(ValueError, time.strftime, '',
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56 (1900, 13, 1, 0, 0, 0, 0, 1, -1))
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57 # Check day of month [1, 31] + zero support
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58 self.assertRaises(ValueError, time.strftime, '',
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59 (1900, 1, -1, 0, 0, 0, 0, 1, -1))
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60 self.assertRaises(ValueError, time.strftime, '',
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61 (1900, 1, 32, 0, 0, 0, 0, 1, -1))
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62 # Check hour [0, 23]
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63 self.assertRaises(ValueError, time.strftime, '',
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64 (1900, 1, 1, -1, 0, 0, 0, 1, -1))
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65 self.assertRaises(ValueError, time.strftime, '',
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66 (1900, 1, 1, 24, 0, 0, 0, 1, -1))
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67 # Check minute [0, 59]
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68 self.assertRaises(ValueError, time.strftime, '',
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69 (1900, 1, 1, 0, -1, 0, 0, 1, -1))
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70 self.assertRaises(ValueError, time.strftime, '',
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71 (1900, 1, 1, 0, 60, 0, 0, 1, -1))
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72 # Check second [0, 61]
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73 self.assertRaises(ValueError, time.strftime, '',
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74 (1900, 1, 1, 0, 0, -1, 0, 1, -1))
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75 # C99 only requires allowing for one leap second, but Python's docs say
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76 # allow two leap seconds (0..61)
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77 self.assertRaises(ValueError, time.strftime, '',
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78 (1900, 1, 1, 0, 0, 62, 0, 1, -1))
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79 # No check for upper-bound day of week;
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80 # value forced into range by a ``% 7`` calculation.
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81 # Start check at -2 since gettmarg() increments value before taking
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82 # modulo.
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83 self.assertRaises(ValueError, time.strftime, '',
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84 (1900, 1, 1, 0, 0, 0, -2, 1, -1))
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85 # Check day of the year [1, 366] + zero support
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86 self.assertRaises(ValueError, time.strftime, '',
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87 (1900, 1, 1, 0, 0, 0, 0, -1, -1))
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88 self.assertRaises(ValueError, time.strftime, '',
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89 (1900, 1, 1, 0, 0, 0, 0, 367, -1))
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90 # Check daylight savings flag [-1, 1]
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91 self.assertRaises(ValueError, time.strftime, '',
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92 (1900, 1, 1, 0, 0, 0, 0, 1, -2))
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93 self.assertRaises(ValueError, time.strftime, '',
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94 (1900, 1, 1, 0, 0, 0, 0, 1, 2))
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95
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96 def test_default_values_for_zero(self):
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97 # Make sure that using all zeros uses the proper default values.
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98 # No test for daylight savings since strftime() does not change output
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99 # based on its value.
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100 expected = "2000 01 01 00 00 00 1 001"
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101 result = time.strftime("%Y %m %d %H %M %S %w %j", (0,)*9)
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102 self.assertEquals(expected, result)
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103
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104 def test_strptime(self):
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105 # Should be able to go round-trip from strftime to strptime without
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106 # throwing an exception.
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107 tt = time.gmtime(self.t)
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108 for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I',
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109 'j', 'm', 'M', 'p', 'S',
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110 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
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111 format = '%' + directive
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112 strf_output = time.strftime(format, tt)
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113 try:
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114 time.strptime(strf_output, format)
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115 except ValueError:
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116 self.fail("conversion specifier %r failed with '%s' input." %
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117 (format, strf_output))
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118
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119 def test_asctime(self):
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120 time.asctime(time.gmtime(self.t))
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121 self.assertRaises(TypeError, time.asctime, 0)
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122
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123 def test_tzset(self):
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124 if not hasattr(time, "tzset"):
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125 return # Can't test this; don't want the test suite to fail
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126
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127 from os import environ
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128
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129 # Epoch time of midnight Dec 25th 2002. Never DST in northern
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130 # hemisphere.
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131 xmas2002 = 1040774400.0
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132
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133 # These formats are correct for 2002, and possibly future years
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134 # This format is the 'standard' as documented at:
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135 # http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html
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136 # They are also documented in the tzset(3) man page on most Unix
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137 # systems.
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138 eastern = 'EST+05EDT,M4.1.0,M10.5.0'
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139 victoria = 'AEST-10AEDT-11,M10.5.0,M3.5.0'
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140 utc='UTC+0'
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141
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142 org_TZ = environ.get('TZ',None)
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143 try:
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144 # Make sure we can switch to UTC time and results are correct
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145 # Note that unknown timezones default to UTC.
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146 # Note that altzone is undefined in UTC, as there is no DST
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147 environ['TZ'] = eastern
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148 time.tzset()
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149 environ['TZ'] = utc
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150 time.tzset()
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151 self.failUnlessEqual(
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152 time.gmtime(xmas2002), time.localtime(xmas2002)
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153 )
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154 self.failUnlessEqual(time.daylight, 0)
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155 self.failUnlessEqual(time.timezone, 0)
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156 self.failUnlessEqual(time.localtime(xmas2002).tm_isdst, 0)
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157
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158 # Make sure we can switch to US/Eastern
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159 environ['TZ'] = eastern
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160 time.tzset()
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161 self.failIfEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
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162 self.failUnlessEqual(time.tzname, ('EST', 'EDT'))
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163 self.failUnlessEqual(len(time.tzname), 2)
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164 self.failUnlessEqual(time.daylight, 1)
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165 self.failUnlessEqual(time.timezone, 18000)
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166 self.failUnlessEqual(time.altzone, 14400)
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167 self.failUnlessEqual(time.localtime(xmas2002).tm_isdst, 0)
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168 self.failUnlessEqual(len(time.tzname), 2)
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169
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170 # Now go to the southern hemisphere.
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171 environ['TZ'] = victoria
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172 time.tzset()
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173 self.failIfEqual(time.gmtime(xmas2002), time.localtime(xmas2002))
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174 self.failUnless(time.tzname[0] == 'AEST', str(time.tzname[0]))
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175 self.failUnless(time.tzname[1] == 'AEDT', str(time.tzname[1]))
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176 self.failUnlessEqual(len(time.tzname), 2)
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177 self.failUnlessEqual(time.daylight, 1)
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178 self.failUnlessEqual(time.timezone, -36000)
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179 self.failUnlessEqual(time.altzone, -39600)
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180 self.failUnlessEqual(time.localtime(xmas2002).tm_isdst, 1)
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181
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182 finally:
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183 # Repair TZ environment variable in case any other tests
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184 # rely on it.
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185 if org_TZ is not None:
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186 environ['TZ'] = org_TZ
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187 elif environ.has_key('TZ'):
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188 del environ['TZ']
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189 time.tzset()
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190
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191 def test_insane_timestamps(self):
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192 # It's possible that some platform maps time_t to double,
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193 # and that this test will fail there. This test should
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194 # exempt such platforms (provided they return reasonable
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195 # results!).
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196 for func in time.ctime, time.gmtime, time.localtime:
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197 for unreasonable in -1e200, 1e200:
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198 self.assertRaises(ValueError, func, unreasonable)
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199
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200 def test_ctime_without_arg(self):
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201 # Not sure how to check the values, since the clock could tick
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202 # at any time. Make sure these are at least accepted and
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203 # don't raise errors.
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204 time.ctime()
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205 time.ctime(None)
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206
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207 def test_gmtime_without_arg(self):
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208 gt0 = time.gmtime()
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209 gt1 = time.gmtime(None)
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210 t0 = time.mktime(gt0)
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211 t1 = time.mktime(gt1)
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212 self.assert_(0 <= (t1-t0) < 0.2)
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213
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214 def test_localtime_without_arg(self):
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215 lt0 = time.localtime()
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216 lt1 = time.localtime(None)
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217 t0 = time.mktime(lt0)
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218 t1 = time.mktime(lt1)
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219 self.assert_(0 <= (t1-t0) < 0.2)
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220
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221 def test_main():
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222 test_support.run_unittest(TimeTestCase)
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223
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224
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225 if __name__ == "__main__":
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226 test_main()